CN104823341B - The optically pumped solid-state laser equipment of gain with autoregistration pump optical device and enhancing - Google Patents
The optically pumped solid-state laser equipment of gain with autoregistration pump optical device and enhancing Download PDFInfo
- Publication number
- CN104823341B CN104823341B CN201380064804.1A CN201380064804A CN104823341B CN 104823341 B CN104823341 B CN 104823341B CN 201380064804 A CN201380064804 A CN 201380064804A CN 104823341 B CN104823341 B CN 104823341B
- Authority
- CN
- China
- Prior art keywords
- laser
- solid
- state laser
- resonator
- mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 230000002708 enhancing effect Effects 0.000 title abstract description 4
- 238000005086 pumping Methods 0.000 claims abstract description 47
- 230000005855 radiation Effects 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/041—Optical pumping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/025—Constructional details of solid state lasers, e.g. housings or mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/185—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL]
- H01S5/187—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL] using Bragg reflection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/42—Arrays of surface emitting lasers
- H01S5/423—Arrays of surface emitting lasers having a vertical cavity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
- H01S3/08068—Holes; Stepped surface; Special cross-section
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
- Semiconductor Lasers (AREA)
Abstract
The present invention relates to a kind of optically pumped solid-state laser equipment comprising the one or several solid-state laser mediums in laser resonator（100）And one or several pump laser diodes（200）With pumping radiation speculum（300）.Laser resonator is by being arranged in solid-state laser medium（100）The first side one or several first resonator mirrors and be arranged in solid-state laser medium（100）The second side one or several second resonator mirrors（310,320,330）It is formed.First and second resonator mirrors are arranged to laser emission（500）Guiding passes through each described laser medium at least two different straight paths（100）.Pump laser diode（200）It is arranged to and passes through pumping radiation（510）In the pumping radiation speculum（300）The reflection at place carrys out optically pumped solid-state laser medium（100）.Pumping radiation speculum（300）With the second resonator mirror（310,320,330）It is formed on single mirror element（600）In.Using the design of solid-state laser equipment, realize pump optical device be easy to align with and the gain of the enhancing of laser apparatus.The solid-state laser equipment proposed can be realized in the form of compact.
Description
Technical field
The present invention relates to a kind of one or several solid-state laser mediums and optically pumped solid-state including in laser resonator
The optically pumped solid-state laser equipment of the one or several pump laser diodes of laser medium, the laser resonator is by cloth
Set the first side of the solid-state laser medium one or several first resonator mirrors and be arranged in the solid-state laser medium
One or several second resonator mirrors of second, opposite, side formed, first and second resonator mirror is arranged to will be described
The laser emission of laser resonator guides at least two different straight paths passes through each described laser medium.For this
The example of kind optically pumped solid-state laser equipment is optical pumping Vertical extended cavity surface emitting laser（VECSEL）Or half
Conductor disk laser（SDL）, provide for the dielectric laser device power with high brightness, narrow bandwidth and short laser pulse
（medium laser powers）Compact and inexpensive solution.Such laser apparatus can be used for requirement ratio
Numerous applications of higher brightness and/or shorter pulse that laser diode can supply.
Background technology
Standard disk laser needs the optics of pump laser and pump laser optical device about laser resonator
Pattern precisely aligns.It is difficult during the manufacture for being aligned in laser apparatus.In addition, such laser is usually low
It is restricted in terms of the power of brightness pumps radiation, the low-light level pumping radiation can focus on the given active of laser medium
In region, this leads to the low gain of laser apparatus.Similarly, the maximum diffipation power density in laser medium is usually by cold
But the limitation of method is particularly limited by installation the heat sink of laser medium on it.
5,553,088 A of US disclose a kind of one or several dish type solid-state laser mediums including in laser resonator
Solid-state laser equipment.Laser resonator at least one embodiment from the first end face of solid-state laser medium by forming
Several second resonator mirrors of first resonator mirror and the second, opposite, side for being arranged in solid-state laser medium are formed.Resonator mirror quilt
It is arranged to guide the laser emission of laser resonator on two different paths and passes through laser medium.By being arranged in and solid-state
Several laser diodes at the identical carrier element of laser medium are from side-pumped laser medium.Since laser emission is in difference
The equipment for propagating through laser medium on path, therefore being proposed allows the gain of the enhancing of laser medium.This also allows to give birth to
At the more preferable of heat be distributed and lead to improved cooling.The document does not propose in the laser passed through by laser emission
Any solution of pump optical device being more easily aligned in the situation of the end face progress optical pumping of medium.
Invention content
The object of the present invention is to provide a kind of optical side pumped solid state lasers with one or several solid-state laser mediums
Device equipment makes it possible to easily be directed at pump optical device and can realize in a compact fashion.
The purpose is realized using optical side pumped solid-state laser equipment according to claim 1.The advantageous implementation of equipment
Example is the theme of dependent claims or can be inferred from the further part and preferred embodiment of specification.
The optical side pumped solid-state laser equipment proposed includes the one or several preferred domains in laser resonator
Shape or plate shape solid-state laser medium.Laser resonator is humorous by be arranged in the first side of solid-state laser medium one or several first
Shake device mirror and be arranged in solid-state laser medium the second side opposite with first side one or several second resonator mirrors
It is formed.First and second resonator mirrors are arranged to the laser emission of laser apparatus at least two different straight paths
Guiding passes through each described laser medium.Laser can be designed as such as VECSEL, wherein each laser medium by
Form the DBR of one of first resonator mirror（Distributed Bragg reflector）On quantum well structure formed.However, it is also possible to real
Existing other types of laser, such as wherein solid-state laser medium is the solid-state laser of laser crystal.One or several laser
Device pump laser diode and pumping radiation speculum are arranged to through the pumping laser at the pumping radiation speculum
The reflection of the pumping radiation of diode carrys out optically pumped solid-state laser medium.Pumping radiation speculum is together with the second resonator mirror one
It rises and is located in the second side and is arranged and designed into the solid-state laser medium being directly reflected into pumping radiation in the second side
End face.Reflection of pump power mirror and the second resonator mirror are formed on the single mirror element in the second side of solid-state laser medium
In.First resonator mirror or resonator mirror can be formed by the end face of the laser medium on the first side.For this purpose, crystalline laser
The end face of medium can suitably be applied the high reflection for being coated with and realizing laser emission in these endfaces.In VECSEL or semiconductor
In the situation of disk laser, the first resonator mirror by arranging laser medium on it（Active medium）'s（It is multiple）DBR is formed.
However, it is also possible to provide in the form of the mirror element of separation（It is multiple）First resonator mirror.
The solid-state laser equipment of the present invention uses appropriately designed mirror element, and pump light, which is directed to solid-state laser, to be situated between
And at the same time forming the second resonator mirror of laser resonator in matter.The pumping radiation mirror being formed in the mirror element is designed to
Pumping is covered in the region of the laser medium of the pattern of the laser emission on different paths by these laser mediums.Therefore, it pumps
Pu beam and zlasing mode are always overlapped without complicated alignment, because the part for forming the mirror element of pump optical device is total
It is in the fixed spatial relationship in the part with the mirror element for forming the second resonator mirror.Utilize such self-centering mirror member
The alignment of part, pump optical device significantly simplifies.The design proposed allows pump laser diode close to the cloth of laser medium
It sets, so as to cause the design closely of solid-state laser equipment.The difference for passing through solid-state laser medium due to laser emission
Path can deposit the pump energy of higher amount, so as to cause laser apparatus compared to wherein laser emission always identical
The gain enhanced for the laser-like of laser medium is propagated through on path.Different paths also allow better heat to be distributed
And the thus more preferable cooling of solid-state laser equipment.Cooling is preferably realized by the cooling body with plane surface, is swashed
Optical medium is installed to adjacent to each other on the plane surface.Pump laser diode can also be with solid-state laser medium neighboringly
And/or it is installed on in-between in the cooling body.Pump laser diode is then towards mirror element transmitting substantially perpendicular to solid
The pumping radiation of the end face of state laser medium.Cooling body can be the heat sink of bulk material, particularly metal, and can also have
It is useful for air cooled cold sink.It is also possible to for the cooling body to be embodied as the chamber of the coolant liquid for such as water, institute
It states coolant liquid and is pumped through cooling body during the operation of laser apparatus.
Pump laser diode can be the array of single diode or laser diode, such as Vertical Cavity Surface transmitting swashs
Light device（VCSEL）Array or microchip VECSEL arrays.The main body of mirror element is preferably formed by optically transparent material, such as through
The glass of coating or coated plastics.Coating for mirror can be formed by metalized coated or dielectric coating, such as ability
As known in domain.
The laser apparatus proposed may include being mounted on carrier element appropriate, particularly cooling body adjacent to each other
On at least two solid-state laser mediums.Each in these laser mediums is preferably swashed by several pumpings on carrier element
Optical diode surrounds.Then mirror element may include a pumping radiation speculum for laser medium described in each, institute
It states pumping radiation speculum and preferably pertains to corresponding laser medium centering.On mirror element, these pumping radiation speculums arrangement
Between the second resonator mirror, the laser emission from one of laser medium is reflected into neighbouring laser medium.This causes to lead to
The zigzag path for the laser emission crossed between the first and second resonator mirrors of laser apparatus and cause to pass through laser medium
Different straight paths.Pump laser diode and pumping radiation speculum be arranged and designed into make it is each in these paths
It is a that required gain is realized by fully optical pumping.One in two external resonator mirrors of mirror element is designed to
Form laser resonator goes out coupling mirror.This means that the mirror allows the fraction of laser emission to pass through the mirror to laser resonator
Outside access.
In a further embodiment, the solid-state laser equipment proposed includes be arranged on carrier element appropriate one
A single solid-state laser medium.Similarly in this embodiment, if solid-state laser medium is preferably by the carrier element
Dry pump laser diode surrounds.In this embodiment, mirror element may include to be formed the second resonator mirror center and
It is designed to pumping radiation being reflected into solid-state laser medium and is formed（It is multiple）The outside area of pumping radiation speculum.It depends on
The number of second resonator mirror, laser emission can be conducted through laser medium on substantially more than two different paths,
So as to cause the zigzag path of the laser emission between the first and second resonator mirrors by laser apparatus, as before
In embodiment like that.The outside area of mirror element be then designed to covering by the laser emission of the laser medium it is all not
With the pattern in path solid-state laser medium towards（facing）Endface generates the intensity distribution of pumping radiation.Similarly exist
In the embodiment, what one of second resonator mirror was designed to be formed laser resonator goes out coupling mirror.
These and other aspects of the invention will be apparent from embodiment described below and will be with reference to the implementation
Example is illustrated.
Description of the drawings
Itd is proposed solid-state laser equipment is more fully described following by exemplary mode combination attached drawing.Each figure
It shows：
First exemplary cross-sectional side view of the laser apparatus that Fig. 1 is proposed；
Top view in the solid-state laser medium of the laser apparatus of Fig. 2 Fig. 1；
Top view on the mirror element of the laser apparatus of Fig. 3 Fig. 1；
Cross-sectional side view in second example of the solid-state laser equipment that Fig. 4 is proposed；
Top view in the solid-state laser medium of the laser apparatus of Fig. 5 Fig. 4；
Top view on the mirror element of the laser apparatus of Fig. 6 Fig. 4；
Fig. 7 along circular path A indicated in Fig. 6 viewgraph of cross-section.
Specific implementation mode
Fig. 1 shows the first exemplary cross-sectional side view of proposed solid-state laser equipment.Laser apparatus includes
Three plate shape solid-state laser mediums 100 being mounted side by side on heat sink 400 plane surface.It is every in these laser mediums 100
One can be formed by the active region of VCSEL and be surrounded by several pump laser diodes 200, as can from Fig. 2 institute
Show to laser medium and it is heat sink on top view identify as.Laser resonator in the example is by being arranged in laser
Seven resonator mirrors on the both sides of medium are formed.First resonator mirror is formed by the DBR of the VCSEL of offer laser medium 100.
End mirror 320 goes out coupling mirror 330 and two refrative mirrors 310 are arranged in the second, opposite, side of laser medium 100.Utilize resonator
The shown arrangement of mirror, laser emission 500 propagate through laser apparatus on zigzag path.Each laser medium 100 is two
It is transmitted on a difference path.The arrangement further includes being arranged and designed into pumping radiation 510 towards the end face of laser medium 100
Three pumping radiation speculums 300 of orientation.Second resonator mirror 310,320,330 is together with pumping radiation speculum 300
It is formed in a single optical element 600.Since the optical element can manufacture with high precision, can not have
Ideally ensure pumping radiation speculum 300 in the case of having any other alignment（That is pump optical device）With the second resonance
Relative orientation between device mirror 310,320,330 and arrangement.Thus, when installing proposed laser apparatus, it is very easy to
Realize alignment of the pump optical device about laser resonator.Pumping radiation speculum is by three parabolics as indicated in figure 1
Face is formed.The radiation of pump laser diode 200 is thus reflected and focuses on active medium（Laser medium 100）It is upper and with
The optical mode of resonator in these media is overlapped.
Fig. 3 shows wherein identify pumping radiation speculum 300 and second laser mirror（End mirror 320, refrative mirror
310 and go out coupling mirror 330）Disposed adjacent optical element 600 on top view.
It is of course also possible to by the single rectangular active medium that extends between two of Fig. 1 external laser mediums 100 come
Replace three laser mediums 100.Then pump laser diode 200 will be positioned along the long side of rectangular laser medium.Mirror element
600 will provide for the direct refrative mirror 310 located adjacent one another on both sides with pumping mirror 300.Certainly, this is only according to this hair
One in several other possibilities of bright arrangement.
Fig. 4 shows the second exemplary side view of proposed solid-state laser equipment.In this example, only one solid-state
Laser medium 100 is arranged on heat sink 400 plane surface.If the solid-state laser medium is by heat sink 400 similar face
Dry pump laser diode surrounds.The solid-state laser of the example of such arrangement for pump laser diode 200 in Figure 5
It is shown in top view on medium 100.
Mirror element 600 in the embodiment include pumping radiation is reflected into it is outer on the end face of solid-state laser medium 100
Section 301.The central part 311 of mirror element 600 forms the second resonator mirror.In this case, all pump laser diodes
In the exterior section 301 that 200 radiation passes through mirror element 600（It is multiple）Pumping radiation focusing mirror is in the allusion quotation than resonator
On the larger-sized single patch of pattern formula 110（Referring to Fig. 5）.For state-of-the-art disk laser, bigger than mode sizes
More regions pumped will lead to the multi-mode operation with the brightness reduced.However in this embodiment, several refrative mirrors
Zlasing mode is reflected through pumped region 110 by 310 circular arrangement at several different locations.Refrative mirror 310 is somebody's turn to do
It is shown in the top view being arranged in the reflection side of mirror element 600 shown in Fig. 6.
Fig. 7 shows the optical path of laser emission with the viewgraph of cross-section along round wire A indicated in Fig. 6.At this
In viewgraph of cross-section, also indicates out the end mirror 320 of laser resonator and go out coupling mirror 330.Since Fig. 7 is showing along round wire
Cross section, therefore resonator end mirror 320 and go out coupling mirror 330 and be arranged in adjacent to each other on mirror element 600.For this field skill
It is apparent that the central part in the region pumped can also be filled by the appropriate arrangement of refrative mirror 310 for art personnel
There is optical mode.
Although illustrating and describing the present invention in detail in attached drawing and foregoing description, such diagram and description
Be considered to be it is illustrative or exemplary and not restrictive；The present invention is not limited to the disclosed embodiments.For example, although each figure
Three different laser mediums are only shown, but such medium of another number, such as two or more than three can be provided.
By laser medium or pass through whole equipment（Particularly form zigzag path）Different paths and corresponding refrative mirror 310 number
Mesh is not limited to disclosed number.
In addition, the functional laser component for solid-state laser, such as calibrator, nonlinear crystal, SESAM（Half
Conductor saturable absorption somascope）, saturable absorber, polarizer, pockels cell, AOM（Acousto-optic modulator）... it can collect
At in laser apparatus.Those skilled in the art when putting into practice invention claimed, by attached drawing, disclosure and
The research of appended claims, it is possible to understand that and realize other modifications of the disclosed embodiments.In the claims, word
" comprising " is not excluded for other element or steps, and indefinite article "a" or "an" be not excluded for it is multiple.It is mutually different from
The only fact for belonging to certain measures described in claim does not indicate that the combination of these measures cannot be used for benefiting.Particularly, institute
There is equipment claim that can be freely combined, if significant in this way.Reference marker in claim should not be construed as
Limit range.
List of reference signs
100 laser mediums
110 regions pumped
200 pump laser diodes
300 pumping radiation speculums
The exterior section of 301 mirror elements
310 resonator refrative mirrors
The central part of 311 mirror elements
320 resonator end mirrors
330 resonators go out coupling mirror
400 is heat sink
500 laser emissions
510 pumping radiations
600 mirror elements
Claims (9)
1. a kind of optically pumped solid-state laser equipment, including
One or several solid-state laser mediums in laser resonator（100）,
By being arranged in the solid-state laser medium（100）The first side one or several first resonator mirrors and be arranged in institute
State solid-state laser medium（100）The second side opposite with first side one or several second resonator mirrors（310,
320,330）The laser resonator formed,
It is arranged to the laser emission of the laser resonator（500）Guiding passes through every at least two different straight paths
One laser medium（100）First and second resonator mirror（310,320,330）,
One or several pump laser diodes（200）With pumping radiation speculum（300）,
It is arranged to and passes through pumping radiation（510）In the pumping radiation speculum（300）The reflection at place comes optical pumping institute
State solid-state laser medium（100）The pump laser diode（200）,
It is disposed in the second side and is designed to the pumping radiation（510）Directly it is reflected into solid-state laser medium
（100）The pumping radiation speculum（300）,
The wherein described reflection of pump power mirror（300）With second resonator mirror（310,320,330）It is formed on single
Mirror element（600）In, and
The wherein described solid-state laser medium（100）It is formed by the quantum well structure on distributed Bragg reflector.
2. optically pumped solid-state laser equipment according to claim 1,
The wherein described solid-state laser medium（100）It is mounted side by side on cooling body（400）On.
3. optically pumped solid-state laser equipment according to claim 2,
Wherein equipment includes at least two solid-state laser mediums（100）, each is by the cooling body（400）On it is several
The pump laser diode（200）It surrounds.
4. optically pumped solid-state laser equipment according to claim 3,
Wherein mirror element（600）Including being used for each described laser medium（100）A pumping radiation speculum（300）,
The pumping radiation speculum（300）It is arranged in second resonator mirror（310,320,330）Coupling is formed out with being designed to
Close second resonator mirror of mirror（310,320,330）In outside one between.
5. optically pumped solid-state laser equipment according to claim 2,
Wherein equipment includes by the cooling body（400）On several pump laser diodes（200）The list surrounded
A solid-state laser medium（100）.
6. optically pumped solid-state laser equipment according to claim 5,
Wherein mirror element（600）Including forming second resonator mirror（310,320,330）Center（311）And it is set
It counts into the pumping radiation（510）It is reflected into solid-state laser medium（100）And form the pumping radiation speculum（300）'s
Outside area（301）, second resonator mirror（310,320,330）One of be designed to form out coupling mirror.
7. optically pumped solid-state laser equipment according to claim 6,
The wherein described mirror element（600）The outside area（301）It is designed in the solid-state laser medium（100）Middle generation
Pumping radiation（510）Intensity distribution, intensity distribution covering passes through solid-state laser medium（100）Laser emission（500）
All different straight paths.
8. optically pumped solid-state laser equipment according to claim 2,
The wherein described pump laser diode is arranged in the cooling body to surround each described solid-state laser medium.
9. according to claim 2 or the optically pumped solid-state laser equipment of claim 5,
The wherein described pump laser diode is Vcsel or the transmitting of electrical pump Vertical extended cavity surface
Laser.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261735682P | 2012-12-11 | 2012-12-11 | |
| US61/735,682 | 2012-12-11 | ||
| PCT/IB2013/059898 WO2014091326A1 (en) | 2012-12-11 | 2013-11-05 | Optically pumped solid state laser device with self aligning pump optics and enhanced gain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104823341A CN104823341A (en) | 2015-08-05 |
| CN104823341B true CN104823341B (en) | 2018-09-21 |
Family
ID=49639925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380064804.1A Active CN104823341B (en) | 2012-12-11 | 2013-11-05 | The optically pumped solid-state laser equipment of gain with autoregistration pump optical device and enhancing |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20150318656A1 (en) |
| EP (1) | EP2932568B1 (en) |
| JP (1) | JP6246228B2 (en) |
| CN (1) | CN104823341B (en) |
| BR (1) | BR112015013252A2 (en) |
| RU (1) | RU2654303C2 (en) |
| WO (1) | WO2014091326A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6862658B2 (en) * | 2016-02-15 | 2021-04-21 | 株式会社リコー | Optical amplifier, driving method of optical amplifier and optical amplification method |
| EP3419123A1 (en) * | 2017-06-22 | 2018-12-26 | Koninklijke Philips N.V. | Vertical cavity surface emitting laser (vcsel) with improved gain-switching behavior |
| DE102018009384B4 (en) | 2018-11-30 | 2022-01-20 | Diehl Defence Gmbh & Co. Kg | Laser Detector System |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541020A1 (en) * | 1995-11-03 | 1997-05-07 | Daimler Benz Ag | Laser amplifier system |
| DE19728845A1 (en) * | 1997-07-05 | 1999-01-07 | Daimler Benz Ag | Laser amplifier |
| CN101093931A (en) * | 2006-06-22 | 2007-12-26 | 中国科学院半导体研究所 | Long wavelength laser transmitted perpendicular to surface of cavity by using integrated pumping light source |
| CN102313975A (en) * | 2011-07-20 | 2012-01-11 | 香港应用科技研究院有限公司 | Light concentration system |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553088A (en) | 1993-07-02 | 1996-09-03 | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V. | Laser amplifying system |
| US5926494A (en) * | 1997-04-11 | 1999-07-20 | Hughes Electronics Corporation | Laser systems with improved performance and reduced parasitics and method |
| US6097742A (en) * | 1999-03-05 | 2000-08-01 | Coherent, Inc. | High-power external-cavity optically-pumped semiconductor lasers |
| US6969253B2 (en) * | 1999-09-24 | 2005-11-29 | Cao Group, Inc. | Light for use in activating light-activated materials, the light having at least one light emitting semiconductor chip, the chip being attached to a primary heat sink that is attached to a secondary heat sink using heat conductive and electrically insulative adhesive |
| JP2003060299A (en) * | 2001-06-07 | 2003-02-28 | Ricoh Opt Ind Co Ltd | Optical output device, optical output device array, lens device, and lens device array |
| US6647050B2 (en) * | 2001-09-18 | 2003-11-11 | Agilent Technologies, Inc. | Flip-chip assembly for optically-pumped lasers |
| US7518801B2 (en) * | 2002-03-26 | 2009-04-14 | Brillant Film Llc | Method for making collimating or transflecting film having a reflective layer |
| US6980572B2 (en) * | 2002-05-28 | 2005-12-27 | The Regents Of The University Of California | Wavelength selectable light source |
| JP2006165292A (en) * | 2004-12-08 | 2006-06-22 | Ricoh Co Ltd | Semiconductor laser excitation solid state laser device |
| ATE350789T1 (en) * | 2004-12-23 | 2007-01-15 | Trumpf Laser Gmbh & Co Kg | LASER AMPLIFIER AND LASER RESONATOR WITH MULTIPLE LASER ACTIVE MEDIA |
| US8014433B2 (en) * | 2005-03-16 | 2011-09-06 | Apollo Instruments | Laser apparatuses with large-number multi-reflection pump systems |
| US7408970B2 (en) * | 2005-05-06 | 2008-08-05 | Coherent, Inc. | Optically pumped external-cavity semiconductor laser with multiple gain structures |
| KR100718128B1 (en) * | 2005-06-02 | 2007-05-14 | 삼성전자주식회사 | Surface emitting laser aligned with pump laser on singel heak sink |
| FR2896921B1 (en) * | 2006-01-31 | 2010-06-04 | Centre Nat Rech Scient | DEVICE FOR LONGITUDINAL PUMPING OF A LASER MEDIUM |
| US9397476B2 (en) * | 2007-05-07 | 2016-07-19 | Koninklijke Philips N.V. | Laser sensor for self-mixing interferometry having a vertical external cavity surface emission laser (VECSEL) as the light source |
| US8102893B2 (en) * | 2007-06-14 | 2012-01-24 | Necsel Intellectual Property | Multiple emitter VECSEL |
| RU2461932C2 (en) * | 2010-12-14 | 2012-09-20 | Учреждение Российской академии наук Физический институт им. П.Н. Лебедева РАН (ФИАН) | Semiconductor disc laser |
-
2013
- 2013-11-05 WO PCT/IB2013/059898 patent/WO2014091326A1/en active Application Filing
- 2013-11-05 CN CN201380064804.1A patent/CN104823341B/en active Active
- 2013-11-05 EP EP13795301.4A patent/EP2932568B1/en active Active
- 2013-11-05 RU RU2015128065A patent/RU2654303C2/en not_active IP Right Cessation
- 2013-11-05 BR BR112015013252A patent/BR112015013252A2/en not_active Application Discontinuation
- 2013-11-05 US US14/650,606 patent/US20150318656A1/en not_active Abandoned
- 2013-11-05 JP JP2015546114A patent/JP6246228B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541020A1 (en) * | 1995-11-03 | 1997-05-07 | Daimler Benz Ag | Laser amplifier system |
| DE19728845A1 (en) * | 1997-07-05 | 1999-01-07 | Daimler Benz Ag | Laser amplifier |
| CN101093931A (en) * | 2006-06-22 | 2007-12-26 | 中国科学院半导体研究所 | Long wavelength laser transmitted perpendicular to surface of cavity by using integrated pumping light source |
| CN102313975A (en) * | 2011-07-20 | 2012-01-11 | 香港应用科技研究院有限公司 | Light concentration system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6246228B2 (en) | 2017-12-13 |
| RU2654303C2 (en) | 2018-05-17 |
| RU2015128065A (en) | 2017-01-19 |
| EP2932568A1 (en) | 2015-10-21 |
| CN104823341A (en) | 2015-08-05 |
| US20150318656A1 (en) | 2015-11-05 |
| BR112015013252A2 (en) | 2017-07-11 |
| JP2016503957A (en) | 2016-02-08 |
| EP2932568B1 (en) | 2021-10-27 |
| WO2014091326A1 (en) | 2014-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10707650B2 (en) | High-speed VCSEL device | |
| US8929407B2 (en) | VCSEL pumped fiber optic gain systems | |
| US6192062B1 (en) | Beam combining of diode laser array elements for high brightness and power | |
| US6208679B1 (en) | High-power multi-wavelength external cavity laser | |
| CN110299668B (en) | Construction of multiple diode laser modules and method of operating the same | |
| WO2006109730A1 (en) | Laser light source and optical device | |
| JP2016085991A (en) | Luminaire | |
| CN104823341B (en) | The optically pumped solid-state laser equipment of gain with autoregistration pump optical device and enhancing | |
| US7949022B2 (en) | Diode pumping of a laser gain medium | |
| CN104247170A (en) | Optically pumped solid state laser device with self-aligning pump optics | |
| JP2006339638A (en) | Surface emitting laser coupled together with pump laser on single heat sink | |
| KR100950277B1 (en) | Green laser generation device, and portable electronic machine having laser projection display using the said device | |
| JP6514209B2 (en) | Device for coupling pump light to a fiber and method of manufacturing the same | |
| JP2015530756A (en) | Laser diode side pumping of long solid lasers without using focusing optics | |
| CN111033113B (en) | Broad band light source based on crystalline phosphors | |
| KR102150701B1 (en) | Single-pacakge light source apparatus and laser apparatus comprsing the same | |
| WO2000022702A1 (en) | Light amplifier, light amplification apparatus, and light amplification method | |
| CN221651955U (en) | Optical fiber laser | |
| CN219041029U (en) | Optical fiber integrated device for pulse optical fiber laser and pulse optical fiber laser | |
| KR102025759B1 (en) | Thin-disk laser device | |
| CN208272353U (en) | A kind of apparatus and system for output high-power density hot spot | |
| WO2018151100A1 (en) | Semiconductor laser module | |
| JP2004325550A (en) | Light converging mechanism, semiconductor laser device and optically excited solid laser | |
| CN115832830A (en) | High-integration laser system | |
| CN106207732A (en) | A kind of method that two steps excite continuous wave ultraviolet laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |